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Reference

BAP1 loss defines a new class of renal cell carcinoma.

Paper Id
COSP29013
Authors
Peña-Llopis S,Vega-Rubín-de-Celis S,Liao A,Leng N,Pavía-Jiménez A,Wang S,Yamasaki T,Zhrebker L,Sivanand S,Spence P,Kinch L,Hambuch T,Jain S,Lotan Y,Margulis V,Sagalowsky AI,Summerour PB,Kabbani W,Wong SW,Grishin N,Laurent M,Xie XJ,Haudenschild CD,Ross MT,Bentley DR,Kapur P and Brugarolas J
Affiliation
1] Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA. [2] Department of Developmental Biology, University of Texas Southwestern Medical Center, Dallas, Texas, USA. [3] Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, Texas, USA.
Journal
Nature genetics 2012;44(7):751-9
ISSN:1546-1718
PUBMED:22683710
Abstract
The molecular pathogenesis of renal cell carcinoma (RCC) is poorly understood. Whole-genome and exome sequencing followed by innovative tumorgraft analyses (to accurately determine mutant allele ratios) identified several putative two-hit tumor suppressor genes, including BAP1. The BAP1 protein, a nuclear deubiquitinase, is inactivated in 15% of clear cell RCCs. BAP1 cofractionates with and binds to HCF-1 in tumorgrafts. Mutations disrupting the HCF-1 binding motif impair BAP1-mediated suppression of cell proliferation but not deubiquitination of monoubiquitinated histone 2A lysine 119 (H2AK119ub1). BAP1 loss sensitizes RCC cells in vitro to genotoxic stress. Notably, mutations in BAP1 and PBRM1 anticorrelate in tumors (P = 3 × 10(-5)), and combined loss of BAP1 and PBRM1 in a few RCCs was associated with rhabdoid features (q = 0.0007). BAP1 and PBRM1 regulate seemingly different gene expression programs, and BAP1 loss was associated with high tumor grade (q = 0.0005). Our results establish the foundation for an integrated pathological and molecular genetic classification of RCC, paving the way for subtype-specific treatments exploiting genetic vulnerabilities.
Paper Status
Curated
Genes Analysed
348
Mutated Samples
165
Total No. of Samples
169
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Genes Samples CDS Mutation AA Mutation
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Non-Mutant Genes Gene Id (COSG)
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Non-Mutant Samples Sample Id (COSS)
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Sample Name Mutation Count
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Sample ID Sample Name ID NCV Annotation Zygosity Chromosome Genome start Genome stop Genome version Strand WT seq Mut seq
This tab shows the gene expression and copy number variation data for this study. [more details]

Table Information

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The table currently shows only high value (numeric) copy number data. Copy number segments are excluded if the total copy number and minor allele values are unknown.

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Sample Gene Expression Expr Level (Z-Score)

Over Expressed; Z-Score > 2.0

Under Expressed; Z-Score < -2.0

Normal; Z-Score within the range -2.0 to 2.0

CN Type Minor Allele Copy Number CN Segment Posn. Average Ploidy

1. N/A represents cases where the average ploidy value is not available( mostly ICGC samples). For some TCGA samples where the minor allele information is not available the average ploidy value could not be calculated.

2. For TCGA samples, the ASCAT algorithm was used to calculate the average ploidy.

3. For CGP samples, the PICNIC algorithm was used to calculate the average ploidy.

CNV
This tab shows the fusion mutations observed in this sample [more details]
Gene Sample Name Id Sample(COSS) CDS Mutation Somatic status Zygosity Validated Type